2. Sample Papers
  3. Railways
  4. Quantitative Aptitude
  5. Speed, Time and Distance

Railways Quantitative Aptitude Speed, Time and Distance Sample Paper Time, Speed and distance Sample Test Paper-12

  • question_answer
    A car travels a distance of 170 km in 2 hours partly at a speed of 100 km/hr and partly at 50 km/hr. Find the distance travelled at speed of 100 km/hr.

    A)  100 km

    B)  70 km

    C)  140 km

    D)  160 km

    Correct Answer: C

    Solution :

    [c] Let distance travelled at 100 km/hr. be ?x? km. \[\therefore \] Distance travelled at 50 km/hr. is (170 ? x) km. Total time taken to cover 170 km is 2 hrs. \[\therefore \] \[\frac{x}{100}+\frac{170-x}{50}=2\] \[\Rightarrow \] \[x+340-2x=200\] \[\Rightarrow \] \[x=140\,\,km\] \[\therefore \] Distance travelled at 100 km.hr is 140 km.


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